Normal T15 maps are a HUGE problem at the moment.

Sustaining maps is not a problem at all but normal t15 are almost non existing. It's almost impossible to trade for them as they just not dropping that often and as you progress in to endgame you no longer want to run random rare t15.

Let us turn unwanted maps into white so we can at least craft, I am not sure what would be best solution but honesty I believe the way it used to work was way better.